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//
// System.Web.Hosting.ApplicationManager
//
// Author:
// Gonzalo Paniagua Javier (gonzalo@novell.com)
//
//
// Copyright (C) 2006 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Permissions;
using System.Security.Policy;
using System.Threading;
namespace System.Web.Hosting {
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class ApplicationManager : MarshalByRefObject {
static ApplicationManager instance = new ApplicationManager ();
int users;
Dictionary <string, BareApplicationHost> id_to_host;
private ApplicationManager ()
{
id_to_host = new Dictionary<string, BareApplicationHost> ();
}
public void Close ()
{
if (Interlocked.Decrement (ref users) == 0)
ShutdownAll ();
}
public IRegisteredObject CreateObject (string appId, Type type, string virtualPath,
string physicalPath, bool failIfExists)
{
return CreateObject (appId, type, virtualPath, physicalPath, failIfExists, true);
}
public IRegisteredObject CreateObject (string appId, Type type, string virtualPath,
string physicalPath, bool failIfExists, bool throwOnError)
{
if (appId == null)
throw new ArgumentNullException ("appId");
if (!VirtualPathUtility.IsAbsolute (virtualPath))
throw new ArgumentException ("Relative path no allowed.", "virtualPath");
if (physicalPath == null || physicalPath == "")
throw new ArgumentException ("Cannot be null or empty", "physicalPath");
// 'type' is not checked. If it's null, we'll throw a NullReferenceException
if (!typeof (IRegisteredObject).IsAssignableFrom (type)) {
string msg = String.Format ("Type '{0}' does not implement IRegisteredObject.", type.Name);
throw new ArgumentException (msg, "type");
}
//
// ArgumentException is thrown for the physical path from the internal object created
// in the new application domain.
BareApplicationHost host = null;
if (id_to_host.ContainsKey (appId))
host = id_to_host [appId];
IRegisteredObject ireg = null;
if (host != null) {
ireg = CheckIfExists (host, type, failIfExists);
if (ireg != null)
return ireg;
}
try {
if (host == null)
host = CreateHost (appId, virtualPath, physicalPath);
ireg = host.CreateInstance (type);
} catch (Exception e) {
if (throwOnError)
throw;
}
if (ireg != null && host.GetObject (type) == null) // If not registered from ctor...
host.RegisterObject (ireg, true);
return ireg;
}
// Used from ClientBuildManager
internal BareApplicationHost CreateOrReuseHost (string appId, string vpath, string ppath)
{
if (id_to_host.ContainsKey (appId))
return id_to_host [appId];
return CreateHost (appId, vpath, ppath);
}
BareApplicationHost CreateHost (string appId, string vpath, string ppath)
{
BareApplicationHost host;
host = (BareApplicationHost) ApplicationHost.CreateApplicationHost (typeof (BareApplicationHost), vpath, ppath);
id_to_host [appId] = host;
return host;
}
IRegisteredObject CheckIfExists (BareApplicationHost host, Type type, bool failIfExists)
{
IRegisteredObject ireg = host.GetObject (type);
if (ireg == null)
return null;
if (failIfExists) {
string msg = String.Format ("Well known object of type '{0}' already " +
"exists in this domain.", type.Name);
throw new InvalidOperationException (msg);
}
return ireg;
}
public static ApplicationManager GetApplicationManager ()
{
return instance;
}
public IRegisteredObject GetObject (string appId, Type type)
{
if (appId == null)
throw new ArgumentNullException ("appId");
if (type == null)
throw new ArgumentNullException ("type");
BareApplicationHost host = null;
if (!id_to_host.ContainsKey (appId))
return null;
host = id_to_host [appId];
return host.GetObject (type);
}
public ApplicationInfo [] GetRunningApplications ()
{
ICollection<string> coll = id_to_host.Keys;
string [] keys = new string [coll.Count];
coll.CopyTo (keys, 0);
ApplicationInfo [] result = new ApplicationInfo [coll.Count];
int i = 0;
foreach (string str in keys) {
BareApplicationHost host = id_to_host [str];
result [i++] = new ApplicationInfo (str, host.PhysicalPath, host.VirtualPath);
}
return result;
}
public override object InitializeLifetimeService ()
{
return null;
}
public bool IsIdle ()
{
throw new NotImplementedException ();
}
public void Open ()
{
Interlocked.Increment (ref users);
}
public void ShutdownAll ()
{
ICollection<string> coll = id_to_host.Keys;
string [] keys = new string [coll.Count];
coll.CopyTo (keys, 0);
ApplicationInfo [] result = new ApplicationInfo [coll.Count];
int i = 0;
foreach (string str in keys) {
BareApplicationHost host = id_to_host [str];
host.Shutdown ();
}
id_to_host.Clear ();
}
public void ShutdownApplication (string appId)
{
if (appId == null)
throw new ArgumentNullException ("appId");
BareApplicationHost host = id_to_host [appId];
if (host == null)
return;
host.Shutdown ();
}
public void StopObject (string appId, Type type)
{
if (appId == null)
throw new ArgumentNullException ("appId");
if (type == null)
throw new ArgumentNullException ("type");
if (!id_to_host.ContainsKey (appId))
return;
BareApplicationHost host = id_to_host [appId];
if (host == null)
return;
host.StopObject (type);
}
}
}
#endif
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